sfgenshots (2.0-git)
index
user/pyang/Mgenshots.cu
Generate shots for FWI using Enquist absorbing boundary condition

 
Synopsis
        sfgenshots < vinit.rsf > shots.rsf time=time.rsf check=check.rsf chk=n kt=100 amp=1000 fm=10 dt= nt= ns= ng= jsx= jsz=0 jgx=1 jgz=0 sxbeg= szbeg= gxbeg= gzbeg= csdgather=n

Note: You can try other complex boundary condition but we do not
recommend to do so. The main reason is that FWI is to recover
the low-frequency information of the earth model. Low-freq
means that exact absorbing is not necessarilly needed. The
result will be improved with the optimization procedure.
Furthermore, complex boundary condition (such as sponge ABC or
PML) implies more computational cost, which will degrade the
efficiency of FWI.

 
Parameters
       
 
float amp=1000
maximum amplitude of ricker
 
file check=
auxiliary output file name
 
bool chk=n [y/n]
check whether GPU-CPU implementation coincide with each other or not
 
bool csdgather=n [y/n]
default, common shot-gather; if n, record at every point
 
float dt=
time interval
 
float fm=10
dominant freq of ricker
 
int gxbeg=
x-begining index of receivers, starting from 0
 
int gzbeg=
z-begining index of receivers, starting from 0
 
int jgx=1
receiver x-axis jump interval
 
int jgz=0
receiver z-axis jump interval
 
int jsx=
source x-axis jump interval
 
int jsz=0
source z-axis jump interval
 
int kt=100
check it at it=100
 
int ng=
total receivers in each shot
 
int ns=
total shots
 
int nt=
total modeling time steps
 
int sxbeg=
x-begining index of sources, starting from 0
 
int szbeg=
z-begining index of sources, starting from 0
 
file time=
auxiliary output file name

 
Used In
       

 
XJTU
        gpufwi/marmtest
gpufwi/speedup
primer/marmfwi